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236 lines
8.3 KiB
236 lines
8.3 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#ifndef hsMemoryDefined |
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#define hsMemoryDefined |
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#include "hsTypes.h" |
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#include "hsMalloc.h" |
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//#include "hsTemplates.h" |
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class HSMemory { |
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public: |
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#if HS_BUILD_FOR_MAC |
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static void BlockMove(const void* src, void* dst, UInt32 length); |
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#else |
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static void BlockMove(const void* src, void* dst, UInt32 length); |
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#endif |
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static void Clear(void *m, UInt32 byteLen); |
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static void ClearMemory(void *m, UInt32 byteLen) { HSMemory::Clear(m, byteLen); } |
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static hsBool EqualBlocks(const void* block1, const void* block2, UInt32 length); |
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static void* New(UInt32 size); |
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static void Delete(void* block); |
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static void* Copy(UInt32 length, const void* source); |
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static void* SoftNew(UInt32 size); // returns nil if can't allocate |
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}; |
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/////////////////////////////////////////////////////////////////////////////////////////// |
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class hsAllocator { |
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public: |
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virtual void* Alloc(UInt32 size) = 0; |
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virtual void Free(void* addr) = 0; |
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}; |
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class hsScratchMem { |
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enum { |
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kBufferSize = 32 |
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}; |
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UInt8* fMem; |
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UInt8 fMemBuffer[kBufferSize]; |
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UInt32 fLength; |
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public: |
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hsScratchMem() : fLength(kBufferSize) |
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{ |
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fMem = fMemBuffer; |
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} |
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~hsScratchMem() |
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{ |
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if (fMem != fMemBuffer) |
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delete[] fMem; |
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} |
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UInt8* GetMem(UInt32 length) |
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{ |
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if (length > fLength) |
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{ if (fMem != fMemBuffer) |
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delete[] fMem; |
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fMem = TRACKED_NEW UInt8[length]; |
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fLength = length; |
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} |
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return fMem; |
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} |
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}; |
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class hsChunkAllocator { |
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enum { |
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kDefaultChunkSize = 4096 |
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}; |
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UInt32 fChunkSize; |
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struct hsPrivateChunk* fChunk; |
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hsDebugCode(UInt32 fChunkCount;) |
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public: |
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hsChunkAllocator(UInt32 chunkSize = kDefaultChunkSize); |
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~hsChunkAllocator(); |
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void Reset(); |
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void SetChunkSize(UInt32 size); |
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void* Allocate(UInt32 size, const void* data = nil); // throws if fails |
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void* SoftAllocate(UInt32 size, const void* data = nil); // returns nil if fails |
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}; |
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/////////////////////////////////////////////////////////////////////////////////////////// |
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class hsAppender { |
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struct hsAppenderHead* fFirstBlock, *fLastBlock; |
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UInt32 fElemSize, fElemCount, fCount; |
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friend class hsAppenderIterator; |
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public: |
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hsAppender(UInt32 elemSize, UInt32 minCount = 16); |
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~hsAppender(); |
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UInt32 ElemSize() const { return fElemSize; } |
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UInt32 Count() const { return fCount; } |
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hsBool IsEmpty() const { return fCount == 0; } |
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void Reset(); |
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UInt32 CopyInto(void* data = nil) const; // return size of data array in bytes |
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void* PushHead(); |
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void PushHead(const void* data); |
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void* PushTail(); |
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void PushTail(const void* data); |
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void PushTail(int count, const void* data); // data[] = count * fElemSize |
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void* PeekHead() const; |
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void* PeekTail() const; |
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hsBool PopHead(void* data = nil); |
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int PopHead(int count, void* data = nil); // data[] = count * fElemSize |
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hsBool PopTail(void* data = nil); |
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// Alternate interfaces |
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void* Prepend() { return this->PushHead(); } |
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void* Append() { return this->PushTail(); } |
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void* Push() { return this->PushHead(); } |
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void Push(const void* data) { this->PushHead(data); } |
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hsBool Pop(void* data = nil) { return this->PopHead(data); } |
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void* Enqueue() { return this->PushTail(); }; |
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void Enqueue(const void* data) { this->PushTail(data); } |
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void Enqueue(int count, const void* data) { this->PushTail(count, data); } |
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hsBool Dequeue(void* data = nil) { return this->PopHead(data); } |
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int Dequeue(int count, void* data = nil) { return this->PopHead(count, data); } |
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}; |
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class hsAppenderIterator { |
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const hsAppender* fAppender; |
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const struct hsAppenderHead* fCurrBlock; |
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void* fCurrItem; |
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public: |
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hsAppenderIterator(const hsAppender* list = nil); |
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void ResetToHead(const hsAppender* list = nil); |
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void ResetToTail(const hsAppender* list = nil); |
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void* Next(); |
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hsBool Next(void* data); |
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int Next(int count, void* data); |
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void* Prev(); |
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hsBool Prev(void* data); |
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// Obsolete interface |
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void Reset(const hsAppender* list = nil) { this->ResetToHead(list); } |
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}; |
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/////////////////////////////////////////////////////////////////////////////// |
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template <class T> class hsTAppender : hsAppender { |
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public: |
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hsTAppender() : hsAppender(sizeof(T)) {} |
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hsTAppender(UInt32 minCount) : hsAppender(sizeof(T), minCount) {} |
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hsAppender* GetAppender() { return this; } |
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const hsAppender* GetAppender() const { return this; } |
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UInt32 Count() const { return hsAppender::Count(); } |
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hsBool IsEmpty() const { return hsAppender::IsEmpty(); } |
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void Reset() { hsAppender::Reset(); } |
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UInt32 CopyInto(T copy[]) const { return hsAppender::CopyInto(copy); } |
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T* PushHead() { return (T*)hsAppender::PushHead(); } |
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void PushHead(const T& item) { *this->PushHead() = item; } |
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T* PushTail() { return (T*)hsAppender::PushTail(); } |
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void PushTail(const T& item) { *this->PushTail() = item; }; |
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void PushTail(int count, const T item[]) { this->hsAppender::PushTail(count, item); }; |
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T* PeekHead() const { return (T*)hsAppender::PeekHead(); } |
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T* PeekTail() const { return (T*)hsAppender::PeekTail(); } |
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hsBool PopHead(T* item = nil) { return hsAppender::PopHead(item); } |
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int PopHead(int count, T item[] = nil) { return hsAppender::PopHead(count, item); } |
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hsBool PopTail(T* item = nil) { return hsAppender::PopTail(item); } |
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// Alternate intefaces |
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T* Prepend() { return this->PushHead(); } |
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T* Append() { return this->PushTail(); } |
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void PrependItem(const T& item) { this->PushHead(item); } |
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void AppendItem(const T& item) { this->PushTail(item); } |
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T* Push() { return this->PushHead(); } |
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void Push(const T& item) { this->PushHead(item); } |
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hsBool Pop(T* item = nil) { return this->PopHead(item); } |
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T* Enqueue() { return this->PushTail(); }; |
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void Enqueue(const T& item) { this->PushTail(item); } |
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void Enqueue(int count, const T item[]) { this->PushTail(count, item); } |
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hsBool Dequeue(T* item = nil) { return this->PopHead(item); } |
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int Dequeue(int count, T item[] = nil) { return this->PopHead(count, item); } |
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}; |
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template <class T> class hsTAppenderIterator : hsAppenderIterator { |
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public: |
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hsTAppenderIterator() : hsAppenderIterator() {} |
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hsTAppenderIterator(const hsTAppender<T>* list) : hsAppenderIterator(list->GetAppender()) {} |
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void ResetToHead() { hsAppenderIterator::ResetToHead(nil); } |
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void ResetToHead(const hsTAppender<T>* list) { hsAppenderIterator::ResetToHead(list->GetAppender()); } |
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void ResetToTail() { hsAppenderIterator::ResetToTail(nil); } |
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void ResetToTail(const hsTAppender<T>* list) { hsAppenderIterator::ResetToTail(list->GetAppender()); } |
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T* Next() { return (T*)hsAppenderIterator::Next(); } |
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hsBool Next(T* item) { return hsAppenderIterator::Next(item); } |
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T* Prev() { return (T*)hsAppenderIterator::Prev(); } |
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hsBool Prev(T* item) { return hsAppenderIterator::Prev(item); } |
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// Obsolete interfaces |
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void Reset() { this->ResetToHead(); } |
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void Reset(const hsTAppender<T>* list) { this->ResetToHead(list); } |
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}; |
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#endif |
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